1990 GMC Sierra Statistics from North America
Warning, these statistics are based on a biased sample, so should be treated with caution
| Number of reviews | 8 |
| Would buy another GMC? | 75% |
| Would not buy another GMC? | 13% |
| Average Performance marks | 8.6 |
| Average Reliability marks | 9.3 |
| Average Comfort marks | 7.9 |
| Average Dealer Service marks | 5.8 |
| Average Running Costs (higher is cheaper) | 6.4 |